Features of petrochemical cracking catalysts produced by aluminosilicate technology

The features of cracking catalysts produced by aluminosilicate technology are described. Approaches to designing cracking catalysts for processing various types of materials (light, heavy, mixed) are shown. The main methods for modifying components and properties of catalysts prepared on their basis are presented. Methods for reducing catalyst activity in hydrogen transfer reactions (for catalysts prepared by aluminosilicate technology) are shown. The achievable yields of olefins on the described catalysts are 35 and 50 wt.% at processing heavy and light feedstock types respectively. The influence of the feedstock hydrotreating degree on the yield of light olefins is considered.